I am trying to draw a 3x2 rectangle. I am not sure if multipart rectangle can do it, but it seems that multipart can only do one-dimensional arrays. I tried matrix, but then I cannot get the lines in between cells or around the rectangle. I need to put text in each cell. What I want to get is a rectangle with the following with the box around and horizontal and vertical lines in between cells:

Aid Value
1 R1
2 R2

This needs to be inside a tikz environment. Here is what I have as a minimal code and it is fine except for the matrix part on the right: